""A New Method in the Theory of Superconductivity"" is a book written by N. N. Bogoliubov, a renowned physicist and mathematician. The book presents a new method in the theory of superconductivity, which is a phenomenon where certain materials exhibit zero electrical resistance when cooled below a certain temperature. The book begins with an introduction to the basic concepts of superconductivity, including the Meissner effect and the critical temperature. It then introduces the new method, which is based on the use of functional integrals and the renormalization group. The method is applied to various models of superconductivity, including the BCS model and the Ginzburg-Landau theory. The book also discusses the implications of the new method for other areas of physics, such as the theory of phase transitions and the study of critical phenomena. It concludes with a discussion of the potential applications of the new method in the field of condensed matter physics. Overall, ""A New Method in the Theory of Superconductivity"" is a comprehensive and groundbreaking work that has had a significant impact on the field of superconductivity and beyond. It is a must-read for anyone interested in the physics of condensed matter and the development of new theoretical methods.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.